Gas cooktop grate set



FIG. 1 is a front perspective view of a gas cooktop grate set according to our new ornamental design;

FIG. 2 a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a right side view thereof, with the left side view thereof being a mirror image thereof. 

CLAIM The ornamental design for a gas cooktop grate set, as shown and described. 